lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Tue, 25 Aug 2020 21:56:20 +0200
From: Pavel Machek <pavel@...x.de>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
Vasant Hegde <hegdevasant@...ux.vnet.ibm.com>,
Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [PATCH 4.19 65/71] powerpc/pseries: Do not initiate shutdown
when system is running on UPS
Hi!
> We have a user space tool (rtas_errd) on LPAR to monitor for
> EPOW_SHUTDOWN_ON_UPS. Once it gets an event it initiates shutdown
> after predefined time. It also starts monitoring for any new EPOW
Yeah, so there's userspace tool, and currently systems _with_ that
tool work poorly with UPS.
So you have fixed that, and now, systems _without_ that tool will work
poorly.
That's not a fix for serious bug, that's behaviour change. You are
fixing one set of systems and breaking another.
I don't believe it is suitable for stable.
Pavel
> @@ -118,7 +118,6 @@ static void handle_system_shutdown(char
> case EPOW_SHUTDOWN_ON_UPS:
> pr_emerg("Loss of system power detected. System is running on"
> " UPS/battery. Check RTAS error log for details\n");
> - orderly_poweroff(true);
> break;
>
> case EPOW_SHUTDOWN_LOSS_OF_CRITICAL_FUNCTIONS:
>
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
Download attachment "signature.asc" of type "application/pgp-signature" (196 bytes)
Powered by blists - more mailing lists